Stadium: Center Round: 1
| Challenger Fairfield | 2019/10/07 18:00 | Brandon Holt v Collin Altamirano | 6-2,6-2 |
| Challenger Gatineau | 2019/07/15 17:35 | Collin Altamirano v Brandon Holt | 1-6,6-7 |
| ITF USA F32 | 2017/09/26 20:20 | Brandon Holt v Collin Altamirano | 6-2,6-1 |
| Challenger Indian Wells | 2020/03/02 22:45 | Brandon Holt v Sebastian Korda | 3-6,1-6 |
| ITF M25 Rancho Santa Fe | 2020/01/15 17:30 | Agustin Velotti v Brandon Holt | 2-6,2-6 |
| ITF M25 Rancho Santa Fe | 2020/01/14 17:30 | Brandon Holt v Logan Smith | 6-2,6-2 |
| ITF M25 Rancho Santa Fe | 2020/01/13 18:00 | Brandon Holt v August Holmgren | 6-2,7-6 |
| ITF M25 Los Angeles | 2020/01/11 18:00 | Alexander Ritschard v Brandon Holt | 6-4,5-7,7-6 |
| ITF M25 Los Angeles | 2020/01/10 20:40 | Brandon Holt v Geoffrey Blancaneaux | 2-6,7-6,6-0 |
| ITF M25 Los Angeles | 2020/01/08 22:40 | Brandon Holt v Hady Habib | 1-6,6-1,7-6 |
| Challenger Houston | 2019/11/13 23:55 | Marcos Giron v Brandon Holt | 7-6,6-7,6-2 |
| Challenger Monterrey | 2020/03/03 23:20 | Jason Jung v Collin Altamirano | 7-6,6-7,7-6 |
| Challenger Monterrey | 2020/03/02 18:40 | Oscar Jose Gutierrez v Collin Altamirano | 3-6,4-6 |
| Challenger Calgary | 2020/02/26 20:40 | Collin Altamirano v Arthur Rinderknech | 6-3,3-6,3-6 |
| Challenger Calgary | 2020/02/24 17:40 | Collin Altamirano v Fabrizio Ornago | 6-3,7-6 |
| Challenger Morelos | 2020/02/17 18:05 | Collin Altamirano v Matias Franco Descotte | 3-6,5-7 |
| Challenger Cleveland | 2020/02/10 23:00 | Ryan Harrison v Collin Altamirano | 6-4,7-6 |
| Challenger Newport Beach | 2020/01/27 21:35 | Collin Altamirano v Thai-Son Kwiatkowski | 1-6,3-6 |
| ITF M25 Rancho Santa Fe | 2020/01/17 18:45 | Collin Altamirano v Geoffrey Blancaneaux | 0-6,7-6,5-7 |